Finding the Fourth Proportional to 13,207,987.35, 19,811,981.03 and 5,649,715.35
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Solution
The fourth proportional to 13,207,987.35, 19,811,981.03 and 5,649,715.35 is: 8,474,573.03
Step by Step Solution
- Step 1: Write the proportion equation
13,207,987.35 : 19,811,981.03 = 5,649,715.35 : x - Step 2: Convert to fraction form
13,207,987.35/19,811,981.03 = 5,649,715.35/x - Step 3: Cross multiply
13,207,987.35x = 19,811,981.03 × 5,649,715.35 - Step 4: Simplify right side
13,207,987.35x = 111,932,053,310,851.22 - Step 5: Solve for x
x = 111,932,053,310,851.22/13,207,987.35 - Step 6: Final answer
x = 8,474,573.03
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.